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Arabidopsis thaliana

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• Arabidopsis thaliana genome

  Arabidopsis thaliana genome: All of the genetic information contained in Arabidopsis thaliana, a plant belonging to the mustard family. The genomes of particular nonhuman organisms such as Arabidopsis have been studied for a number of reasons including the need to improve sequencing and analysis techniques. These nonhuman genomes also provide powerful sets of data against […]

• Arachnodactyly

  Arachnodactyly: Long spider-like fingers and toes, a frequent finding in Marfan syndrome, a heritable disorder of connective tissue. “Arachnodactyly” is derived from the Greek “arachne” (spider) and “daktylos” (finger). The Greek word was derived from the name “Arachne,” a maiden in Greek mythology whom the goddess Athena turned into a spider after the girl, a […]

• Arachnoiditis

  Inflammation of the middle layer of membranes covering the brain and spinal cord. Arachnoiditis can occur as a complication of procedures such as myelograms, spinal operations, epidural steroid injections, and injury to the spine.

• Arachnophobia

  Arachnophobia: An abnormal and persistent fear of spiders. Sufferers from arachnophobia experience undue anxiety, even though they realize that the risk of encountering a spider and being harmed by it is small or nonexistent. They may avoid going barefoot and may be especially alert when taking showers or getting into and out of bed.

• Arbitration agreement

  Arbitration agreement: An arrangement in which the patient waives the right to sue the physician and, instead, agrees to submit any dispute to arbitration. Arbitration agreements are legal and binding. The arguments in their favor are that, for patients, the case can be settled faster, and more money can go to the patient (rather than […]

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